Home / 891,162.90-1,336,415.07-385,797.78

Finding the Fourth Proportional to 891,162.90, 1,336,415.07 and 385,797.78

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Solution

The fourth proportional to 891,162.90, 1,336,415.07 and 385,797.78 is: 578,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,162.90 : 1,336,415.07 = 385,797.78 : x
  2. Step 2: Convert to fraction form
    891,162.90/1,336,415.07 = 385,797.78/x
  3. Step 3: Cross multiply
    891,162.90x = 1,336,415.07 × 385,797.78
  4. Step 4: Simplify right side
    891,162.90x = 515,585,967,164.55
  5. Step 5: Solve for x
    x = 515,585,967,164.55/891,162.90
  6. Step 6: Final answer
    x = 578,554.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.